Hi David:
On 11/14/2013 03:38 PM, David Ahern wrote:
On 11/14/13, 2:51 PM, Dongsheng Yang wrote:
Currently, we can not record the event counters of host to
perf.data.host.
Example:
perf kvm --host record -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.625 MB perf.data.guest (~27290
samples) ]
perf kvm by definition wants --guest enabled. Host profiling is done
with just 'perf record'; no need for the kvm layer at all. If you
really want to go through perf-kvm to record host events disable guest
actions:
$ perf kvm --host --no-guest record -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.029 MB perf.data.host (~1255
samples) ]
David
Thanx for your reply ! It makes sense.
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